A little help for newbie ;)

Hi i am new on forum and just start to modding.
I wonder how to add laser defence like Airforce General planes have to Migs and Helix second question is its possible to add second mig to airport that attack with missiles ( 1 missile - 1 napalm strike like 8 missiles of migs did ) and for end i want to create some new powers like Helix and migs training ( migs and helix gain 1 rank at start ) and napalm strike at 5 star thats all i hope u help me guys thank u =).